And all that without raising the price. The sellers must be either: - trying to manipulate the price down for whatever reasons, or - massively urgently need loads of cash for some expensive purchases, or - are obliged to sell to Micro Strategy at a low price, or - are obliged to sell to ETFs at a low price, and Micro Strategy happened to know about their plans and had stacked all that cash to be able to pick up the crumbs.